Home / 1,340,462.32-1,849,851.14-728,614.70

Finding the Fourth Proportional to 1,340,462.32, 1,849,851.14 and 728,614.70

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Solution

The fourth proportional to 1,340,462.32, 1,849,851.14 and 728,614.70 is: 1,005,495.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,462.32 : 1,849,851.14 = 728,614.70 : x
  2. Step 2: Convert to fraction form
    1,340,462.32/1,849,851.14 = 728,614.70/x
  3. Step 3: Cross multiply
    1,340,462.32x = 1,849,851.14 × 728,614.70
  4. Step 4: Simplify right side
    1,340,462.32x = 1,347,828,735,237.29
  5. Step 5: Solve for x
    x = 1,347,828,735,237.29/1,340,462.32
  6. Step 6: Final answer
    x = 1,005,495.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.